I have a 93 306 XSi (2.0 8v) which has a problem whereby the car is very jerky when coming off the throttle. Accelerating is fine and reasonably smooth (did have a prob with stepper motor which has been replaced). Backing off the throttle in pretty much any gear, but worse in low gears causes the car to shunt quite severely (feels like fuel starvation). Any help would be much appreciated. Regards Paul